a person who isn't paid enough to kiss the ass of some bastard who has had a bad day at the office and needs to take it out on someone.

customer: "This tea tastes like crap!"
waitress: "I'm sorry sir, i can have some made fresh for you."
customer: "no, don't bother i just want to know why you idiots can't ever get what i order right."
waitress: "I'm sorry sir, i'm not paid enough to do that."
(real conversation)